Error message?

Hi! I'm a content downloader, not a content creator, but I'm not allowed to post in the Bug and Error Reports board, so I figured something labeled "Help" was the next best thing. I cannot merge any packages. Every time I click on the button, I get this error:

The Sims 4 Studio - Version 3.1.5.8
System.Windows.Markup.XamlParseException: Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception. ---> System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: An error occurred loading a configuration file: The type initializer for 'System.MarvinHash' threw an exception. (C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config\machine.config) ---> System.TypeInitializationException: The type initializer for 'System.MarvinHash' threw an exception. ---> System.ApplicationException: Invalid XML in file 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config' near element '</configuration>'. ---> System.Runtime.InteropServices.COMException: Exception from HRESULT: 0xC00CE555
at System.BaseConfigHandler.RunParser(String fileName)
at System.ConfigTreeParser.Parse(String fileName, String configPath, Boolean skipSecurityStuff)
--- End of inner exception stack trace ---
at System.ConfigTreeParser.Parse(String fileName, String configPath, Boolean skipSecurityStuff)
at System.Security.Cryptography.CryptoConfig.OpenCryptoConfig()
at System.Security.Cryptography.CryptoConfig.InitializeConfigInfo()
at System.Security.Cryptography.CryptoConfig.CreateFromName(String name, Object[] args)
at System.Security.Cryptography.RandomNumberGenerator.Create()
at System.MarvinHash.GenerateSeed()
at System.MarvinHash..cctor()
--- End of inner exception stack trace ---
at System.Xml.NameTable..ctor()
at System.Xml.XmlTextReaderImpl..ctor(XmlResolver resolver, XmlReaderSettings settings, XmlParserContext context)
at System.Xml.XmlTextReaderImpl..ctor(Stream stream, Byte[] bytes, Int32 byteCount, XmlReaderSettings settings, Uri baseUri, String baseUriStr, XmlParserContext context, Boolean closeInput)
at System.Xml.XmlReaderSettings.CreateReader(Stream input, Uri baseUri, String baseUriString, XmlParserContext inputContext)
at System.Xml.XmlReader.Create(Stream input, XmlReaderSettings settings, String baseUri)
at System.Xml.XmlReader.Create(Stream input, XmlReaderSettings settings)
at System.Configuration.UriSectionReader.GetSectionData()
--- End of inner exception stack trace ---
at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)
at System.Configuration.BaseConfigurationRecord.ThrowIfInitErrors()
at System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)
--- End of inner exception stack trace ---
at System.Configuration.ConfigurationManager.PrepareConfigSystem()
at System.Configuration.ConfigurationManager.GetSection(String sectionName)
at System.Configuration.PrivilegedConfigurationManager.GetSection(String sectionName)
at System.Net.Configuration.WebRequestModulesSectionInternal.GetSection()
at System.Net.WebRequest.get_PrefixList()
at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase)
at System.Net.WebRequest.Create(Uri requestUri)
at MS.Internal.WpfWebRequestHelper.CreateRequest(Uri uri)
at System.Windows.Media.ColorContext.Initialize(Uri profileUri, Boolean isStandardProfileUriNotFromUser)
at System.Windows.Media.ColorContext..ctor(PixelFormat pixelFormat)
at System.Windows.Media.Imaging.BitmapSource.CreateCachedBitmap(BitmapFrame frame, BitmapSourceSafeMILHandle wicSource, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, BitmapPalette palette)
at System.Windows.Media.Imaging.BitmapFrameDecode.FinalizeCreation()
at System.Windows.Media.Imaging.BitmapFrameDecode..ctor(Int32 frameNumber, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, BitmapDecoder decoder)
at System.Windows.Media.Imaging.BitmapDecoder.SetupFrames(BitmapDecoder decoder, ReadOnlyCollection`1 frames)
at System.Windows.Media.Imaging.BitmapDecoder.get_Frames()
at System.Windows.Media.Imaging.BitmapFrame.CreateFromUriOrStream(Uri baseUri, Uri uri, Stream stream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, RequestCachePolicy uriCachePolicy)
at System.Windows.Media.ImageSourceConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
at System.Windows.Baml2006.TypeConverterMarkupExtension.ProvideValue(IServiceProvider serviceProvider)
at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)
--- End of inner exception stack trace ---
at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
at S4Studio.PackageMergeWindow.InitializeComponent()
at S4Studio.PackageMergeWindow..ctor()
at S4Studio.UI.Core.S4SWindowBase.ShowMergePackageDialog()
at S4Studio.ViewModels.GenericUserCommand.<>c__DisplayClass8_0.<.ctor>b__1(Object y)
at S4Studio.ViewModels.GenericUserCommand.Execute(Object parameter)
at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
at System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

I don't know what it means. Everything else under Content Management works as intended. Please help!

Edit: I turned off OneDrive, but I redownloaded S4S afterwards. Could that possibly be what's contributing to it? How do I fix it without turning OneDrive back on?